<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>用户管理系统</title>
        <style>
        body { font-family: Arial, sans-serif; max-width: 800px; margin: 0 auto; padding: 20px; }
        .form-group { margin-bottom: 15px; }
        table { width: 100%; border-collapse: collapse; margin-top: 20px; }
        th, td { padding: 10px; text-align: left; border-bottom: 1px solid #ddd; }
        th { background-color: #f5f5f5; }
        a { color: #4CAF50; text-decoration: none; }
        button { background-color: #4CAF50; color: white; padding: 6px 12px; border: none; cursor: pointer; }
        button:hover { opacity: 0.8; }
    </style>
</head>
<body>
    <h1>用户管理系统</h1>
    {% block content %}{% endblock %}
    {% block list %}{% endblock %}
</body>
</html>
